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Office of the Chief of Naval Operations, to Vice Admiral William S. Sims, Commander, United States Naval Forces Operating in European Waters

<March 1, 1918>


SIMSADUS <3423> Your 44931 Certain positions of submarine sightings as far west as 192 in some of your later cables would indicate that a large submarine was operating in the neighborhood of 46 N.3 and 20 W. period Would you recommend comma in view of this and the long time during which troop crossings have been made between 46 and 44 following instructions your 11014 comma that these instructions be modified and the limits of latitude within which crossings are made be changed or extended period <21001>


Source Note: Cy, DNA, RG 45, Entry 517B. The date and the time stamp, which appears just before the signature, are handwritten.

Footnote 1: Cable number 4493 has not been found.

Footnote 2: Longitude 19° West, the same longitude as that of Iceland.

Footnote 3: Latitude 46° North.

Footnote 4: Sims’ instructions have not been found.

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